This node is the default scheduler that executes work items on your local machine. This node also runs its scheduled work items in parallel.
This node lets you:
Specify the total resources of the scheduler with the Total Slots parameter.
Set how many work items should run at once with the Slots Per Work Item parameter.
These parameters are not related to the multi-threading of individual processes. To control the multi-threading of Houdini work items, use the Houdini Max Threads parameter.
To execute work items on a farm or on remote machines, use a different scheduler like the HQueue Scheduler.
Global parameters for all work items using this scheduler.
Specifies the relative directory where the work generates intermediate files and output. The intermediate files are placed in a subdirectory. For the Local Scheduler or HQueue, typically
$HIP is used. For other schedulers, this should be a relative directory to
Local Shared Root Path and
Remote Shared Root Path; this path is then appended to these root paths.
If the PDG Path Map exists, then it is applied to file paths.
Delocalizes paths using the
Path Map Zone
When on, specifies a custom mapping zone to apply to all jobs executed by this scheduler. Otherwise, the local platform is
Validate Output Files
When enabled, PDG will check the output files of cooked work items to see if they still exist on disk. Work items that are missing output files will be dirtied and cook again.
When on, a subdirectory is added to the location specified by the Location parameter and is named after the value of your Houdini session’s PID (Process Identifier). The PID is typically a 3-5 digit number.
This is necessary when multiple sessions of Houdini are cooking TOP graphs at the same time.
The full path to the custom temporary directory.
This parameter is only available when Directory Location is set to Custom.
Print extra debugging information in job output logs.
You can override these parameters per node with the Edit Parameter Interface. For more information, see Scheduler Job Parms / Properties.
When on, only one single work item is executed at a time.
Slots Per Work Item
When on, sets the number of slots consumed by each work item. Work items are only run by the scheduler if at least this number of slots are available.
The total number of slots that are available to the scheduler is determined by the Total Slots parameter setting.
If some of your tasks consume a lot of computational or memory resources, you can use the Slots Per Work Item parameter to change the maximum number of processes that are run in parallel. For example, if there are 8 slots available as determined by Total Slots, then a maximum of 8 processes will be executed in parallel. However, if Slots Per Work Item is set to 2 on the processor node, then a maximum of 4 processes will be executed in parallel with each task consuming 2 slots worth of resources in the scheduler.
When a work item process terminates with a non-zero exit code, it is marked as failed by default. These parameters change that behavior.
On Task Failure
Determines what happens when a work item fails.
The work item fails and an error message is added to the node.
The work item succeeds and a warning message is added to the node.
The work item restarts immediately, according to the Maximum Retries and Retry Count Attribute parameter settings.
The work item succeeds and no message is issued.
Handle All Non Zero
When off, lets you specify a particular exit code with the Exit Code field. All other non-zero exit codes are regarded as failures.
Specifies the exit code that is handled by the On Task Failure parameter setting. All other non-zero exit codes are treated as failures.
This parameter is only available when Handle All Non Zero is off.
Sets the maximum number of times the work item will be restarted.
Retry Count Attribute
When on, adds an
int attribute set to the number of times the task was restarted.
Houdini Max Threads
When on, sets the maximum number of threads each work item can use. This also sets the
HOUDINI_MAXTHREADS environment value which is used by Houdini-based programs like Mantra, Karma, Hython, and HBatch.
Requires GUI Window
Normally, processes are started such that they do not pop up command windows on the desktop when they run. However, some Windows applications require a GUI window.
When on, your work items can run GUI Applications in pop-up windows.
Space-separated list of environment variables that should be unset in the job environment.
Additional work item environment variables can be specified here. These will be added to the job’s environment. If the value of the variable is empty, it will be removed from the job’s environment.
Name of the work item environment variable.
Value of the work item environment variable.